Retention tether



FIG. 1 is an isometric view of a retention tether showing my new design.

FIG. 2 is a front side elevation view thereof.

FIG. 3 is a back side elevation view thereof.

FIG. 4 is a top plan view thereof.

FIG. 5 is a bottom plan view thereof.

FIG. 6 is a right elevation view thereof; and,

FIG. 7 is a left elevation view thereof.

The broken lines shown represent unclaimed subject matter and form no part of the claimed design.

Any portion between the break lines forms no part of the claimed design.

It is understood that the material of the claimed design is flexible. 

CLAIM The ornamental design for a retention tether, as shown and described. 